This was so bad, I want God to give me an extra two hours of life having had to sit through it.
First off, the acting was uniformly bad. There was barely a plot, unless "Shaggy dog story with a guy in a rain poncho and skeleton mask instead of a dog" counts.
The editing was was all over the place, and the slow-mo shots of the "gore" (red corn syrup flying through the air--doubtless flung using a spoon) got irritating after the tenth time, and infuriating after the hundredth time.
I like Michael Rooker. He's done some good work. This was not good. This was less than good. And by that, I mean that it sucked. Hard.
For god's sake, don't watch this movie.